Gravity type explosion door with torsion spring

Abstract

The invention provides a gravity type explosion door with a torsion spring so as to overcome the defects that a gravity type explosion door is poor in airtightness, cannot be automatically reset afterpressure relief and excessively relies on the weight of a protective cover, so that materials are wasted, and the gravity type explosion door is too cumbersome. The gravity type explosion door with the torsion spring is characterized in that the gravity type explosion door comprises a flange plate, the torsion spring and a protective cover; the flange plate is fixedly mounted on a sleeve at the tail of a boiler and connected with the explosion door protective cover through the torsion spring; an outlet of the explosion door is obliquely formed and covered with the protective cover; and a groove formed in the edge of the flange plate is matched with a protrusion of the edge of the protective cover, and the protrusion of the edge of the protective cover is made of a high-temperature-resistant elastic material.

Description

technical field [0001] The invention belongs to the field of heating equipment, in particular to a gravity boiler explosion-proof door. Background technique [0002] With the wide application of oil-fired and gas-fired boilers in modern industry, the defects of traditional coal-fired boiler flue gas on air pollution have been overcome, and the severe situation of environmental pollution has been alleviated. When the combustible gas explosion in the furnace will pose a threat to the boiler. Therefore, general oil and gas boilers are equipped with explosion-proof doors. The function of the explosion-proof door is to open automatically when the combustible gas in the furnace or flue deflagrates, and release part of the high-pressure gas generated by the deflagration, thereby releasing the pressure and protecting the boiler from serious damage. The timeliness of opening the explosion-proof door, safe take-off pressure and sufficient pressure relief area are crucial. [0003] ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of poor sealing performance, high maintenance cost, and failure to return automatically after pressure relief in the prior art, the present invention provides a torsion spring gravity valve with simple structure, good sealing performance and automatic return after pressure relief. The type explosion-proof door is an improvement on the basis of the traditional circular gravity type explosion-proof door. It is characterized in that it includes a flange plate, a torsion spring, and a protective cover. It is connected with the protective cover of the explosion-proof door with a torsion spring. The outlet of the explosion-proof door is inclined and covered with a protective cover. The protruding edge is made of high temperature resistant elastic material

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